Question

The focal length of the concave mirror is 12.5 cm how far is its centre of curvature (1)from the pole (2) from the focus

Answer 1

Explanation:

Focal length is defined as the distance between the center of a concave mirror or convex mirror and the focal point (point at which parallel rays intersect) of the mirror.

Here,

focal length (f) of a convex mirror = 12.5 cm

a) Distance between Center of curvature from the pole (Radius of curvature or R) is twice of the focal length:

R = 2 x f

R = 2 x 12.5

R = 25 cm

b) Distance between Center of curvature from the focus is equal to the focal length.

R = 12.5

Hence, the center of curvature from the pole is 25 cm far and from the focus is 12.5 cm far.

Answer 2

Answer:

hey mate your answer is in the attachment